A body goes from A to B with a velocity of 20 m/s and comes back B to A with a velocity of 30 m/s. The
erage velocity of the body during the whole journey is
(3) 25 m/s
(2) 24 m/s
(4) none of these
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Answer:
= (20+30)/2
25m/s
it will be an answer
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